Scuttle fly

5841    Hi, Please help identify. Seemed to be coming from floor drain. I thought they were fruit flies but they were not flying and seemed to move VERY fast on the floor. So fast I thought they were jumping. Size – Approx 1mm    Photo – 50x Magnification
Location – Canada – Niagara-on-the-lake, Ontario
Picture taken  Oct 27. Season – Regards,  Randy

This appears to be a scuttle fly (Diptera: Phoridae); see http://tinyurl.com/j7t4q6x for an example. Their larvae feed on decomposing organic matter, and the flies can become nuisance pests when they occur indoors. We often see them in our home, as we recycle vegetable scraps, which are an excellent food source for the fly larvae. See http://tinyurl.com/hs7upjt for some control suggestions. Ed Saugstad, retired entomologist; Sinks Grove, WV.